Aerial for radio apparatus



April 15, 1930. so 1,755,012

AERIAL FOR RADIO APPARATUS Filed Nov. 10, 1926 2 Sheets-Sheet 1 April 15, 1930.

J. H; MATHESON 1,755,012

AERIAL FOR RADIO APPARATUS Filed Nov, 10. 1926 2 Sheet-Sheet 2 IIFIII|I I IIlll I HUI Patented Apr. 15, 1930 LINKED STATES ATENT FFICE JAMES H. MATHESON, F WYOMISSING, ZENNSYLVA'NIA, ASSIGNOR TO DONALD E. MATHESON, OF EDGEW'QOD PARK, PENNSYLVANIA AERIAL FOR Ea'rDIO APPARATUS Application filed November 10, 1926.

One object of my invention is to make an aerial substantially in the form of a sphere, and to make a carrier consisting of a hub and radiating segments which support the wire.

A further object of the invention is to make the wire-supporting elements of the aerial detachable, so that they can be readily assembled or dismantled for shipment.

In the accompanying drawings:

Fig. 1 is a side View of my improved aerial for radio apparatus;

Fig. 2 is a plan view of the carrier with the wire omitted;

Fig. 3 is a sectional view on the line 3-3,

Fig. 2, of the carrier;

lgig. 4 is a detached perspective view of the hu Fig. 5 is a detached perspective View of one of the wire-supporting segments;

Fig. 6 is a view showing the aerial mounted on a stand or post;

Fig. 7 is a view showing the aerial suspended from a bracket; and

Fig. 8 is a view of a modification.

Referring to the drawings, 1 is a hubof wood or other material. This hub is made as shown in 4:, and has a series of longitudinal slots 2 therein to receive the segments 3 of wood or other suitable non-conducting material. These segments are notched as at 4 to receive the aerial-wire 5.

The segments are preferably detachably secured to the hub, and one method of attachment is shown in Fig. 3. In each segment are slots 66', and on the post or other support 7 is a flange 8. Mounted on the flange is a cap 9 having a flange 10 which extends into the slots 6 of the segments 3.

At the upper end of the hub is a cap 11 having a flange 12, which extends into the slot 6 in the upper ends of the segments 3.

A rod 13 is secured to or forms an integral part of the support 7 and is threaded at its upper end to receive a nut 14, which bears upon the cap 11 and draws the two caps and the segments in position on the hub.

The aerial-wire is secured at one end to a binding-post 15, and is coiled around the carrier, each convolution being inserted in the slot 4 of the several segments, so that the Serial No. 147,589.

several convolutions are spaced apart. The upper end of the wire is held in any suitable manner.

The wire leading to the apparatus is at tached to the binding-post 15. The carrier. may be mounted on a stand 16 as shown in Fig. 6, adjacent to the radio apparatus, or it may be mounted on an outside pole or stand, and in some instances it may be suspended from a bracket as shown in Fig. 7.

In Fig. 8 is shown another modification of the means of clamping the segments of the carrier to the hub. The caps 9 and 11 have beveled flanges which engage beveled notches in the segments, and in the hub is a hole 17 for the reception of a supporting spindle.

By making the aerial substantially in the form of a sphere, it will receive the sound waves from any angle. The aerial occupies a very small space, as it is compact; and the wire is properly supported.

In shipping the radio apparatus, the aerial and its carrier can be dismantled and packed in a comparatively small compass. In some instances, where it is not desirable to detach the partof the carrier, the segment can be permanently secured to the hub.

It will be understood that my improved aerial canbe used as an outside aerial or as an inside aerial, and can be located on a post or on a support on a roof, if desired, or in some cases it may be suspended from the eaves of a roof or other outside support.

The inside aerial can be ornamental and may be supported on a stand 16. Fig. 6. or suspended from a bracket 18, Fig. 7, or it can be located directly on the apparatus, or it may be suspended from the ceiling of the room in which the apparatus is located.

I claim 1. The combination in an aerial of sub stantially spherical form, of a carrier having a hub and radiating supporting segments for the wire; and a continuous wire wound on the segmental supporting members.

2. The combination in an aerial, of a series of radiating supporting elements longitudinally curved and notched on their outer edges forming a substantially spherical carrier; and an aerial wire spirally wound on the carrier and resting in the notches of the segments.

3. The combination in an aerial for radio apparatus; of a hub; a series of segments mounted on the hub; notches in the segments; and an aerial-wire coiled around the carrier and resting in the notches of the segments.

4. The combination in an aerial for radio apparatus, of a hub having longitudinal slots therein; a series of segments located in the slots and forming a carrier; and an aerial wire coiled upon the carrier.

5. The combination in an aerial for radio apparatus, of a hub having longitudinal slots t erein; a series of segments located in the slots, said segment-s having notches in their outer edges; caps at each end of the support of the carrier, said caps having flanges en- 'ng the segments and holding, them in positlon on the hub; and means for clamping the ca s in position.

6. he combination in a carrier for aerial- Wire of radio apparatus, of a hub having a series of longitudinal slots therein; segments located in the slots, and when assembled being substantially in spherical form; means for securing the segments on the hub, the segments having notches; a Wire coiled around the carrier and resting in the notches;

and means for supporting the aerial.

JAMES H. MATHESON. 

